Mass Surveillance Doesn’t Work→

Slate:

In most public comments going back to the initial leaks from Edward Snowden (and in Baker’s tweet from the weekend), authorities have made a shaky claim: that the surveillance dragnet is “designed to detect” an attack like Paris. Based on that claimed purpose, their dragnets are failing.

Even if this sort of thing did work, it’d still qualify as morally iffy at best. The fact that it doesn’t work is rather damning.